The NSMF/E2E SO then initiates the instantiation of the network slice instance. The network slice configuration and deployment information are used to optimize xNF deployment, in line with defined criteria (as traffic KPIs, SLAs for cost, etc.) for a specific service implementation and ensures the workloads of xNFs properly utilize the underlying hardware processing, storage and networking capabilities. The establishment of network slices is achieved by executing an automated workflow to set up all the required network slice components, network connections, and resources, across all network and telco cloud domains.

Amdocs 5G Slice Manager might also include network domains, like Network Slice Subnet Management Functions (NSSMF), for example 5GC NSSMF, or it might integrate with existing NSSMFs that are included with the domain controller, for example, RAN NSSMFs. In both cases the 5G Slice Manager sends a request to the domain’s NSSMFs, to configure corresponding domain functions with the specific network slice instance information.

Figure 7: Figure 7 Amdocs’ 5G Slice Manager Components as Part of the Core Controller

The 5G Slice Manager is responsible to fulfill service business orders into efficient and effective network-oriented service implementation plans, by using pre-defined workflows and deployment optimization across the distributed network and cloud environments.

The 5G Slice Manager enforces and implements policy rules, to continuously assure that network services are up and running, in accordance with the defined criteria. The system policy engine triggers healing and scaling of resources across the network, to elastically adjust to demand variations, based on the specified design, as well as analytics and policies.

This enables the necessary response to ensure the service meets its committed service agreement. The Slice Automation & Orchestration module selectively adds and removes functions, services and resources with zero manual touch, by leveraging automated workflow processes. Consequently, the module deploys and performs ongoing management of end-to-end network slice services across all CSP network domains.